3PL connections

A third-party logistics (3PL) provider stores your inventory and fulfills orders for you. A 3PL connection in Fiddle sends orders out for fulfillment and brings stock and tracking back, so your records stay accurate even though shipping happens elsewhere.

What a 3PL connection does

Direction	What flows
Fiddle → 3PL	Orders to pick, pack, and ship
3PL → Fiddle	Tracking numbers and stock changes

Connectors like ShipHero and WineShipping follow this same pattern.

Set up a connection

1. Go to Settings → Integrations and choose your 3PL.
2. Authorize Fiddle with the provider’s credentials.
3. Map your Fiddle items to the provider’s SKUs or product codes.
4. Choose which orders and locations route to the 3PL.

Reconcile opening stock with the 3PL before you go live. If their on-hand counts and yours don’t agree at the start, availability will be wrong from day one.

Keep counts accurate

The 3PL is the source of truth for stock it holds, so let it report on-hand back to Fiddle rather than adjusting those counts manually. Orders that fail to route appear on the integration status panel with the reason — usually a SKU mismatch or incomplete address.

For how connections work in general, see the integrations overview.